Underage reader reading smut in my fic

this isn’t exactly a big problem, more like a me problem. ten chapters into a fic and it hasn’t been too explicit but i need to write a smut scene soon and i’m a bit worried cuz i’m pretty sure i have readers who are kids. and i’m really no one to speak cuz i’ve read my fair share as a kid but ig the older sister in me is makings me uncomfortable. idk i’m just hoping someone can help me get over this discomfort 😭 cuz i don’t think i want to keep them from reading it, i just don’t want to feel weird when they do

ps. it’s like my second time writing smut and i’ve dealt with a lot of self censure and shame while learning how to properly write so ig i’m trying to get over that wall.